.about_us .about_us_content {
    display: flex;
    align-items: center;
}

.about_us .about_us_content .content_list{
    display: flex;
    margin-left: 50px;
    letter-spacing: 1px;
    color: #656565;
}
.about_us .about_us_content .content_list >div{
    width: 50%;
}
.about_us .about_us_content .content_list >div:first-child{
    margin-right: 50px;
}

.about_us .about_us_content .content_list >div>div{
    text-indent:2rem;
}
.about_us .about_us_content .content_list >div>div:last-child{
    margin-top: 20px;
}


.develop{
    background-color: #F8F7FC;
    
}
.develop .page_title{
    padding: 60px 0 50px 0;
}
.develop .road_map{
    height: 1050px;
    /* padding: 50px 150px 200px 150px; */
    padding-bottom: 200px;
    position: relative;
    box-sizing: unset;
    width: 975px;
    margin: 0 auto;
}
.develop .road_map .road_map_line{
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    letter-spacing: 1px;
}
.develop .road_map .road_map_line::after{
    content: "";
    height: 1050px;
    width: 2px;
    background-color: #dee2e6;
    position: absolute;
    left: calc(50% - 1px);
}
.develop .road_map .road_map_line>div{
    position: absolute;
    left: 50%;
    line-height: 1.6;
    width: 50%;
}
.develop .road_map .road_map_line>div>div{
    display: flex;
    margin-top: -6px;
}

.develop .road_map .road_map_line>div .right{
    margin-left: 28px;
}
.develop .road_map .road_map_line>div .left{
    margin-right: 28px;
    flex-direction: row-reverse;
}
.develop .road_map .road_map_line .left_box{
    left: 0;
}
.develop .road_map .road_map_line>div .left .year{
    text-align: right;
}
.develop .road_map .road_map_line>div .year{
    color: var(--ul-pink);
    min-width: 4rem;
    font-weight: 500;
}
.develop .road_map .road_map_line>div>div:last-child{
    color: #656565;
    font-weight: 100;
}
.develop .road_map .road_map_line .right>span:last-child{
    margin-left: 28px;
}
.develop .road_map .road_map_line .left>span:last-child{
    margin-right: 28px;
}
.develop .road_map .road_map_line>div>img{
    position: absolute;
    z-index: 1;
    
}
.develop .road_map .road_map_line .right_box img{
    left: -7px;
}
.develop .road_map .road_map_line .left_box img{
    right: -7px;
}
.develop .road_map .road_map_line>div:nth-child(1){
    top: 0;
}
.develop .road_map .road_map_line>div:nth-child(2){
    top: 150px;
}
.develop .road_map .road_map_line>div:nth-child(3){
    top: 300px;
}
.develop .road_map .road_map_line>div:nth-child(4){
    top: 450px;
}
.develop .road_map .road_map_line>div:nth-child(5){
    top: 600px;
}
.develop .road_map .road_map_line>div:nth-child(6){
    top: 750px;
}
.develop .road_map .road_map_line>div:nth-child(7){
    top: 900px;
}
.bot_tips{
    color: var(--ul-pink);
    margin: 40px 0 20px 0;
    letter-spacing: 1px;
}


.contact_list{
    display: flex;
    justify-content: space-between;
}
.contact_list .contact_item{
    width: 20%;
    margin: 0 40px;
    text-align: center;
    color: #666666;

}
.contact_list .contact_item>img{
    height: 90px;
}

.contact_list .contact_item>div>h5{
    font-weight: 500;
    margin: 20px 0;
    
}
.contact_list .contact_item>div>p{
    margin: 0;
    text-align: left;

}
.contact_list .contact_item:nth-child(1)>div>p{
    text-indent: 2rem;
}
.contact_list .contact_item:nth-child(2)>div>p{
    text-indent: 1.4rem;
}
.contact_list .contact_item:nth-child(3)>div>p{
    text-indent: 2.6rem;
}
.contact_list .contact_item:nth-child(4)>div>p{
    text-indent: 2.6rem;
}


.about_us_list{
    margin-left: 40px;
}
@media screen and (max-width:992px){
    .about_us_content{
        display: block !important;
        text-align: center;
        margin: 20px;
    }
    
    .about_us_content>img{
        width: 50%;
    }
    .about_us_list{
        text-align: left;
        margin: 10px 0;
    }
    .content_list{
        margin: 1rem !important;
        font-size: 12px;
    }
    .road_map{
        padding: 0 10px !important;
        padding-bottom: 200px !important;
        width: unset !important;
        font-size: 12px;
    }
    .develop .road_map .road_map_line>div .right{
        margin-left: 10px !important;
    }
    .develop .road_map .road_map_line>div .left{
        margin-right: 10px !important;
    }
    .develop .road_map .road_map_line .right>span:last-child{
        margin-left: 0;
        line-height: 14px;
    }
    .develop .road_map .road_map_line .left>span:last-child{
        margin-right: 0;
        line-height: 14px;
    }
}
@media screen and (max-width:480px){
    .contact_list{
        flex-wrap: wrap;
    }
    .contact_list .contact_item{
        margin: 10px;
        width: 43%;
    }
    .contact_list .contact_item>img{
        height: 46px;
    }
    .contact_list .contact_item>div>h5{
        font-size: 1rem;
    }
    .contact_list .contact_item>div>p{
        font-size: 12px;
    }
    .about_us_content>img{
        width: 100%;
    }
}

